Toothbrush



FIG. 1 is a top perspective view of a toothbrush showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear end elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines are included for the purpose of illustrating portions of the toothbrush that are illustrative and that form no part of the claimed design. 

We claim the ornamental design for a toothbrush, as shown and described. 